Non-skid device for automobiles.



0. EASE. NON-SKID DEVIUE FOR AUTOMOBILES.

' APPLICATION iII-BD XAB.24,1910.

Patented Apr 18, 1911,

' 0. RA SH. NON-SKIQDBVIGE FOR AUTOMOBILESx I APPLIOATIOK FILED MAIL-24, 1910.

990,005 Patented Apr. 18, 1911.

Oscar Mme/g" OSCAR RASH, F OAKLAND, CALIFORNIA.

NON-SKID DEVICE FOR AUTOMOBILES.

Specification of Letters Patent.

Application filed March 24. 1910.

atcnted Apr. 1.8, 1911. set-m1 No. 551,294. i

To all whom it may concern:

Be it known that I, ()soau Risii, a citizen of the United States, residing at Oakland,

in the county of Alameda and State of (.lalifornia, have invented certain new and useful Improvements in Non-Skid Devices for Automobiles, of which the following is a specification.

This invention relates to automobiles, and more particularly to wheel grips for use in connection with automobiles, and has for its object to provide a grip which will be simple and cheap, and which, primarily, may be attached to the wheel in a way to prevent skidding or slipping of the driving wheel. with out having a detrimental and wearing effect upon the tire.

Another object is to provide a structure in which the devices may be quickly and easily att ched 0r detached. 0

Stile]; objects and advantages will be apparent from the following description. and

it will :be understood that changes in the specific structure shown and described may be made within the scope of the claim without departing from the spirit of the invention.

In the drawings forming a portion of this specification, and in which like numerals of reference indicate similar parts of the several views,-Figure 1 is a view showing the rearward portion of an automobile, the wheels of which are equipped with the prcsent device. Fig. 2 is an enlarget'l elevational view of a wheel, showing the action of the gripping head upon a hard surface. Fig. 3 in an' edge view of the wheel showing the action of the gripping head upon a soft surface. Fig. 4t is a view of one of the devices detached from the wheel. Fig. is a longitudinal section taken through the cylinder, the'interior portion being shown in elevation. Fig. 6 is an inner end view of the cylinder.

Referring now to the drawings, there shown an automobile wheel 6 provided with a cireumseribing pneumatic tire T and including spokes 8.

The present traction device is indicated at 9, and includes a cylinder 10 open-ended,

as shown, but having a rearward closing t plug 11 screwed thercinto. In diamot tically opposite position upon tllO'SKltR of the cyh uder, there are cars 12, but the cars at one side i t l side, as shown. Each of these cars is provided with an opening 13, receiving the threaded stem 14- ot a spoke engaging hook 15. these hooks extending beyond the cylinder for engagement around the spoke 8 to which the cylinder is attached, as shown in the drawings. The outer ends of the stem 14 are provided with clamping nuts 16 which may be operated to clamp the hook against the spoke.

At that portion of the cylinder 10 which is directed toward the spoke, the cylinder has at each end a boss 17, provided with an interiorly threaded chamber 18, receiving the threaded stem 19.01? a spoke engaging member 20. This member 20 is elongated laterally of the cylinder. and has a concave spoke engaging surface 21.. These members 20 may thus be screwed into or out of the chambers 18 and thus adjusted to properly engage the spoke, or, in some instances, the rim of the wheel. and thus properly adjust the position of the cylinder. At the opposite end of the cylinder from the plug 11, it being understood that the plug is directed toward the center of the wheel while the Opposite end is directed toward the periphery, there is a centrally apertured plug 22, which is screwed into the cylinder, and through the aperture 913 of which there is passed a plunger 24. This plunger Cillli-S a! piston near the plug 22, which moves snugly within the eylii'ider, and within the cylinder there is located a resilient body 26 which is arranged to bear against the piston E25 and against a web 25 to hold the plungei normally projected. This body 26 is shown as a spring, but it will he understood that it may be compressed air. or any other suit able agent. Atits outer end the plunger 24 is provided with a gripping head 25 which extends laterally beyond the plunger peripherally of the wheel and this head is pro vided with serrations 26 at its outer edge. It will thus be seen that. normally. the head 25 is projected and grips the surface over which the tire travels. the compressibility of the tire permitting this gripping. \Vhcn striking a stone or a hard surface. however. the plunger may he forced inwardly. which will relieve the stre s upon the head. which would otherwise result; it it were rigid.

What. is claimed is: i

A traction g ip l'or tires comprising a are offset to lie between the cars at the other cylinder. spolungaginghooks having threaded stems slidab'iy engaged with the cylinQer, nuts engaged with the threaded stems for opemfien to adj mat. the beaks with respect to the cylinder sii cylinder having; threadked recesses there-in, spoke engaging members having threaded stemsengaged in the recesses i501 adjustment of the members with resvect to the cylinder, a. plunger sli iengagEd in the cyiindr means 01 holding 110 plunge? yieldably 'projec ieai, 10 and 2', traction 116216; carried by the plunger.

ia-stimany whereof I signatum,

J2me of two Witnesses.

()SCAR BASH. 

